What does the phrase “Bite Me” mean?

Hi, Sofia Bianchi.

Your son was expressing his annoyance towards his brother. This expression can be used towards someone who made you feel angry or embarrassed.

This is also a taunting phrase that can be simply said as “I don’t care.” It is used to defend the speaker’s actions or opinions that others are questioning. We can use it after expressing our opinion about something or doing something that others might find inappropriate. “I like dipping my burger in peanut butter, bite me!” We can also say, “I don’t want to get married or have children, bite me!”